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on 14 October before finally clearing the south-east. (Thanks to Sharon Jewell, Observations R&D) The map below shows rainfall totals for the 4 days of 11 to 14 October 2018 from this event. Western parts of the UK received well over 50mm - in particular across upland areas with 100 to 150mm or more

recorded in Porthmadog, Gywnedd on 26 February.  In total 21 locations in the Met Office observing-network broke previous national (England, Scotland, Wales) records, some of these on multiple days. Overall it was the seventh warmest, sixth sunniest, and twenty-third driest winter in series from

100 80 Average number of observations 2014 2015 2016 2017 To the right is the average number of birds counted on a survey each month, and despite the totals being quite variable, the mean trend line shows a decrease from winter through to summer, followed by an increase in sightings in autumn. 60 40

. To the right is the average number of birds counted on a survey each month, and despite the totals being quite variable, there is a modest increase from 2014 to 2017. Species diversity has also increased over the past four years, where 2016 saw a record number of 45 different species. 120 100 80 60 40 20

in the series from 1884, marginally ahead of 5.28°C in 2020. For England and Wales combined, this was the second warmest winter on record, just behind 2016. The UK provisionally recorded 445.8mm of rainfall, 129% the 1991-2020 average and the eighth-wettest winter. Rainfall totals were above average for all

ON THE IMPORTANCE OF POLARIZATION IN HELIOSPHERIC IMAGERS S. J. Tappin RAL Space Introduction ● ● ● Heliospheric imagers, have been shown to be a powerful tool for tracking CMEs (and other solar wind structures) through the heliosphere. Hitherto they have only detected total intensity. Coronagraphs

. To the right is the average number of birds counted on a survey each month, and despite the totals being quite variable, the mean trend line shows a decrease from winter through to summer, followed by an increase in sightings in autumn. 140 120 100 80 60 40 20 0 Jan Average number of observations Feb Mar Apr

(e.g. in the Ouse Washes) and receding flood waters stranded fish. The wet spell was punctuated by numerous high rainfall totals causing flooding problems. Notable one-day accumulations included 101 mm at Chilgrove House, West Sussex on 10 June and 208 mm at Honister Pass, Cumbria on 22 June. Two

, California (USA) Extremes of rainfall Rain: the total liquid product of precipitation and condensation from the atmosphere, as received and measured in a rain-gauge. The total amount of precipitation which reaches the ground in a stated period at any place is expressed as the depth to which it would

level up to but excluding the lowest model layer containing 5574m height level). 1 [YYYYMMDD]T[hhmm]Z-PT[nnnn]H[mm]M-cloud_ amount_of_medium_cloud.nc Hourly (1-126) Instantaneous cloud amount of total cloud Fraction of horizontal grid square occupied by cloud as diagnosed by the model cloud scheme